toString method Null safety

  1. @override
String toString()
override

A string representation of this object.

Some classes have a default textual representation, often paired with a static parse function (like int.parse). These classes will provide the textual representation as their string represetion.

Other classes have no meaningful textual representation that a program will care about. Such classes will typically override toString to provide useful information when inspecting the object, mainly for debugging or logging.

Implementation

@override
String toString() {
  final List<String> properties = <String>[
    'size: $size',
    'devicePixelRatio: ${devicePixelRatio.toStringAsFixed(1)}',
    'textScaleFactor: ${textScaleFactor.toStringAsFixed(1)}',
    'platformBrightness: $platformBrightness',
    'padding: $padding',
    'viewPadding: $viewPadding',
    'viewInsets: $viewInsets',
    'alwaysUse24HourFormat: $alwaysUse24HourFormat',
    'accessibleNavigation: $accessibleNavigation',
    'highContrast: $highContrast',
    'disableAnimations: $disableAnimations',
    'invertColors: $invertColors',
    'boldText: $boldText',
    'navigationMode: ${describeEnum(navigationMode)}',
  ];
  return '${objectRuntimeType(this, 'MediaQueryData')}(${properties.join(', ')})';
}